The rate of a process is based upon the energy barrier required to cross the corresponding saddle point, and a harmonic prefactor.
越过马鞍点和前因子所需的能量决定该过程的速度。
单词 | Energy barrier |
释义 |
Energy barrier
英语例句库
The rate of a process is based upon the energy barrier required to cross the corresponding saddle point, and a harmonic prefactor. 越过马鞍点和前因子所需的能量决定该过程的速度。
原声例句
科学大揭秘 But in the quantum world, a particle can still go through such an energy barrier without sufficient energy. 但是在量子世界中,一个粒子在没有足够能量的情况下仍然可以通过这样的能量屏障。 科学60秒-科学美国人 2023年1月合集 In quantum mechanics, a tiny object can zip right through an energy barrier that it would otherwise have to surmount in order for a chemical reaction to take place. 在量子力学中,为了使化学反应发生,微小物体能快速通过能量位垒而不用必须克服它。
中文百科
活化能 Activation energy(重定向自Energy barrier)
![]() ![]() ![]() ![]() 活化能是一个化学名词,又被称为阈能。这一名词是由阿瑞尼士在1889年引入,用来定义一个化学反应的发生所需要克服的能量障碍。活化能可以用于表示一个化学反应发生所需要的最小能量,因此活化能越高,反应越难进行。反应的活化能通常表示为Ea,单位是千焦耳每摩尔(kJ/mol)。 活化能基本上是表示势垒(有时称为能垒)的高度。
英语百科
Activation energy 活化能(重定向自Energy barrier)
![]() ![]() ![]() ![]() In chemistry, activation energy is a term introduced in 1889 by the Swedish scientist Svante Arrhenius to describe the minimum energy which must be available to a chemical system with potential reactants to result in a chemical reaction. Activation energy may also be defined as the minimum energy required to start a chemical reaction. The activation energy of a reaction is usually denoted by Ea and given in units of kilojoules per mole (kJ/mol) or kilocalories per mole (kcal/mol). |
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